Table 1. Details of the meshes used for...

Table 1.

Details of the meshes used for the simulation of the diffuser. x, y and z indicate the streamwise, wall-normal and spanwise directions, respectively

Mesh	No. of elements	$Δ x_{m a x}^{+}$	$Δ y_{m a x}^{+}$	$Δ z_{m a x}^{+}$	y⁺	z⁺
G1	$\approx 1.4$ million	$\approx 238$	$\approx 22$	$\approx 53$	$\approx 8.3$	$\approx 22.0$
G2	$\approx 3.2$ million	$\approx 143$	$\approx 16$	$\approx 38$	$\approx 6.9$	$\approx 11.5$
G3	$\approx 7.1$ million	$\approx 102$	$\approx 12$	$\approx 26$	$\approx 5.5$	$\approx 9.2$

Notes:

The grid sizes are non-dimensionalized in wall units. $Δ x_{m a x}, Δ y_{m a x}$ and $Δ z_{m a x}$ are the maximum grid lengths inside the duct in the stream-wise, wall-normal and span-wise directions, respectively. y⁺ and z⁺ are the resolutions of the walls.

Source: Table by authors

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